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Finding the Fourth Proportional to 66,768.45, 92,140.49 and 36,555.73

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Solution

The fourth proportional to 66,768.45, 92,140.49 and 36,555.73 is: 50,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,768.45 : 92,140.49 = 36,555.73 : x
  2. Step 2: Convert to fraction form
    66,768.45/92,140.49 = 36,555.73/x
  3. Step 3: Cross multiply
    66,768.45x = 92,140.49 × 36,555.73
  4. Step 4: Simplify right side
    66,768.45x = 3,368,262,231.03
  5. Step 5: Solve for x
    x = 3,368,262,231.03/66,768.45
  6. Step 6: Final answer
    x = 50,446.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.